3.3 Batik Color Fastness Test
The color fastness test of batik fabrics in this study was devised by way of wash-air dry, wash-iron dry, and wash-sun dry. Image data obtained were coded in accordance to the treatment of the fabric sample. The images were
then processed using photosop program to extract the RGB redgreenblue data. The results of batik color fastness test for all treatments are presented in Figure 2 below.
Figure 2. Color Fastness Value of Batik with Mangrove-based Natural Dye
The graphic shows that treatment I wash-air dry resulted in a significant discoloration of the batik fabric fixated with limestone. Treatment II wash-iron dry and III wash-sun dry showed significant discoloration of the
batik fabric fixated with alum. The test also showed that wash-sun dry treatment caused the most significant discoloration to the fabrics of all fixation methods.
3.4 Color Fastness Test of Batik with Mangrove Leaf-based Dye
Figure 3. Color Fastness Values of Batik with Mangrove Leaf-based Dye
Figure 3 presents the color fastness of batik fabric with mangrove leaf-based dye fixated with alum, limestone and lotus. The results showed distinct color retention for each treatment. Fabrics fixated with alum on wash-air dry
treatment showed significant discoloration. The second treatment, wash-iron dry, resulted in significant discoloration on fabric with limestone fixation. The third treatment, wash-sun dry, was particularly damaging
to the colors of fabric with alum fixation, compared to that with the other fixation treatments.
Leaf Bark
3.5 Color Fastness Test of Batik with Mangrove Bark-based Dye
Figure 4. Color Fastness Values of Batik with Mangrove Bark-based Dye
The bar chart above showed that the first treatment, wash-air dry on fabrics fixated with limestone resulted in significant discoloration. The most significant discoloration found on fabrics with the second treatment, wash-iron dry,
was observed in fabrics with alum fixation. Alum-fixated fabrics also showed the most significant rate of discoloration in the third treatment, wash-sun dry. Additionally, wash-sun dry treatment resulted in the most significant overall
discoloration on fabrics with all fixation, compared to the other two treatments.
3.6 Consumer Interest in Batik Fabrics with Mangrove-based Natural Dye
The color quality resulted by the application of mangrove leaves and barks for batik dye may vary greatly due to the difference in pigment content compositions. In addition, usage of different fixers also contributes to the variation
of color in such application. The report of respondent ratings is presented in the Table 4 below.
Table 4. Respondent Rating to Colors of Batik Fabric
No Sample
Rating 1
Strongly Dislikes
2 Dislikes
3 Neutral
4 Likes
5 Strongly
Likes
1. Leaf-based with Alum Fixation
6.67 16.67
40 20
16.67 2.
Leaf-based with Limestone Fixation 10
6.67 13.33
46.67 23.33
3. Leaf-based with Lotus Fixation
10 10
20 40
20 4.
Bark-based with Alum Fixation 23.33
40 23.33
6.67 6.67
5. Bark-based Limestone Fixation
23.33 16.67
26.67 16.67
16.67 6.
Bark-based Lotus Fixation 33.33
23.33 16.67
13.33 13.33
Consumer interest ratings in Table 4 showed that 20 of the respondents liked the fabrics with leaf-based dye and alum fixation, which resulted in light brown color. On the other hand, the same fabric fixated with limestone
obtained the preference of 46.67 of the respondents, with strong-hued light brown. The fabrics with lotus fixation were liked by 40 of the respondents, with dark brown or darker color compared to the same fabric dye from other
fixation treatments.
Batik fabrics with mangrove bark-based dye with alum fixation methods gained a very low consumer preference, 6.67, due to its resulting faded colors that the respondents viewed to be detrimental to characteristics of
the batik pattern. The fabrics fixated with limestone was preferred by 16.67 of the respondents due to their brighter colors light brown, and the fabrics fixated with lotus were preferred by 13.33 of the respondents because of their
darker colors when compared to fabrics with other fixers. Batik fabrics with mangrove leaf-based natural dye fixated with limestone and lotus obtained the highest preference rating of all.
3.7 Perceived Ideal Price of Batik with Natural Dye Made from Mangrove Rhizopora
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